Dunkin' Donuts has alerted DD Perks account holders to a security incident after learning an unauthorized party accessed some of their usernames and passwords, NBC News reports.
DD Perks is a rewards program that lets Dunkin' customers purchase food and beverages for pickup and receive free drinks via rewards points and on their birthdays. On Oct. 31, a security vendor detected a third party accessing users' accounts. It believes these actors stole usernames and passwords from other companies and used them to attempt DD Perks logins.

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